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Old 13 January 2017, 11:00   #1
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WinUAE Galaga 92 screen glitching

Has anyone any experience with the minor masterpiece game Galaga 92 on WinUAE? While my real A1200 is waiting for repairs I thought I'd see how emulation feels again and fired up this game only to get game-breaking screen glitching. I updated WinUAE to the latest with no improvement.

The whole screen is flashing green every few frames, both on the title screen and during gameplay. Additionally, scrolling text at the bottom of the screen is being pushed off the bottom of the screen and only the top of the letters is visible. I tried tweaking many display settings in WinUAE but nothing improved matters. Fullscreen and windowed is the same.

This was on a WHDLOAD version of the game that runs perfectly on my real A1200. WinUAE is set to emulate an A1200, and I haven't yet tried running a different version of the game or emulating an A500.
Old 13 January 2017, 12:22   #2
Toni Wilen
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What kind of A1200 config? Too fast emulation mode (at least without immediate blitter) can break lots of games.
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Old 13 January 2017, 12:34   #3
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Couldn't give any real details until I'm home, but nothing exciting. I seem to think I have just standard A1200 / AGA / 2MB Chip + 8MB Fast / normal A1200 speed selected, but I don't remember what settings there are. Will report back when I know more.
Old 13 January 2017, 12:47   #4
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Try turn off JIT setting.
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Old 14 January 2017, 00:43   #5
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Enabling Cycle-Exact under Chipset has solved this. Not sure why I didn't have this checked before. Messing with the Filters page has sorted the remaining display issues, guess it was an overscan thing.

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